EF Hardware Factory

Size: M2-M10

Length: 5-150mm

Material: Stainless Steel, brass, carbon steel

Finish: Passivated or Nickel plating

Our male-female binding screws—also known as Chicago screws or book binding screws—are perfect for securely fastening paper stacks, files, catalogs, and sample books.

Made from high-quality metal , these binding posts are available in various diameters, lengths, head types, and surface finishes (nickel-plated, black, brass, etc.).

Widely used in file folders, notebooks, swatch books, leather goods, and more, our screws are easy to install, reusable, and customizable for your branding or packaging needs.

We support OEM/ODM production and provide fast delivery with consistent quality from our automated workshop.